Metering means for oil filters



Dec. 22, 1931. c. L. M CUEN I METERING MEANS FOR OIL FILTERS Filed Dec.7. 1927 Patented Dec. 22, 1931 um STATE-s CHARLES L. MCCUEN, or LANSING,MICHIGAN, AssIGivoR 1 GENERAL ivro'rons cona roRA'rIon, ornnrnorr,MICHIGAN,LA1CORPORATION or DELAWARE METERING MEANS or. oI m meApplication filed December 7, 1927.'S'eria1 No'. 2 33,411

This invention relates to internalcombustion engines, and particularlyto the lubrication thereof. The invention is particu' larly concernedwith internal combustion en: gines as used .on automotive vehicles.

In prior constructionsa' portion of the'oil delivered by the usual pumpused in force feed lubrication systems has been sent to the filter andreturned therefromeither directly to the crankcase or to a "working partof the engine. Theportion of the oil sent into the filter has usuallybeen by-passed by means of a suitable by-pas's means, and the presentinvention 1s particularly concerned with an arrangement for metering a:portlon cf the oil to the usual oil filter.

My novel dispensingor metering arrangement is built in the camshaft andcomprises a plurality of openings or passages through the camshaft atone of the bearings. The oil is delivered to these passages from a sec-7 0nd inclined passageway which leads from a groove around the camshaft.The oil to this groove is delivered through a duct'con-v structed in arib of the crankcase andleading from a crankshaft bearing.

Leading through a rib ofthe crankcase to the outside thereof isa duct,the, inner end of which is adapted to register intermittently with thepassages through the camshaft as it rotates. The force feed lubricationsystem will force the oil past the crank shaft bearing to the groove inthe camshaft from where a portion ofathe oil will pass through theinclined or diagonal passage into the transverse passages of the camshaft, and as the cam shaft rotates the opening willintermittently.register'with the duct in the crankcase rib and therebycause ashot of oil to pass through the duct each time the camshaftopening registers withthe duct. Outside of the crankcase there isconnected to the duct outlet a connection leading to the conventionaloil filter. The oil filter head is secured to the crankcasefprefen ablyatthe breather, opening andfhas an out} let'to leadthe oilbackthroughthe crankcase into theusual oil' Paul I mayso construct the filter headas to adapt it to fit and be secured to a portion of the crankcase,the-"head thereby servi g as a means forsupportingthe filter. i f

If desired, the conventional type of .filter may be used'and a lead pipeprovided from 7 being necessary? The inventlon is ISClOSGd, on theaccomthe filter to. the crankcase;nofspecialhead panying drawings inwhich: V Figure 1 1s a view of anflnternal-combusvtion engine, withparts broken away "f and shown in section; showing the applicationofmyinven'tiouj Figure 2 is a section on line of'Fig ure'l looking inthe direction of the arrows.

Figure 3' is a detailed view :"of the groove and oil passageways in thecam shaft at one of the bearings. V 1 Figure 4 is a view similar toFigure '2 of a modification.

Referring to the numbered partsfon the drawings, 10 indicates aninternal combustion engineas' a whole, 12 the crankcase, 14Lv the oilpan, 16 the crankshaft, and '1 8th'e cam shaft. The crankshaft has fourbearings shownfat 20, 22,24 and 26, and; to each of thesebearingsthereleads an arm 28 from an ings of the" camshaft, preferablythe bearing oil manifold 30, "to which on is delivered shown at 34 whichis a second bearingfrom the rear of the; engine, although any otherbearing' would do just as well. The specific construction ofthemete'ring arrangement or the camshaft atthis bearing is better shownin Figure 3. The cainshaft is provided with, r

a peripheral groove 36 which receives oil from the passagewaym38 leadingfrom the bearing 24ofthecrankshaft. Allthe crank- V shaftbeariiigsf:are"similar -the oil passing' V shaft 18 at right angles toeach other.. The

' passageway 44 from the groove 36 preferably delivers the oil at themeeting point of the two passageways 46 and 48. While 1 have shown twopassageways 46 and 48 at the bearing 34, it will be understood-that'Imay use one or more as desired, however, in'practicetwoarepreferred; V

Constructed in a rib 5O of -the crankcaseis a duct 52 leading from thebearing34 to a Ypoint 54 outside the crankcase This duct 52 is so placedso that it will register with the ends of the passageways 46 i and 48"to the crossing point of the passages 46 and 48'from where it willbe-delivered to the duct 52each time theends of the passageways'46through the intermediary of the opening 47 in the bushing 35. As the camshaft rotates and the ends-of the passagewaysl46and 48 registerintermittently with the duct 52, the

force'feed lubrication system will 'cause' a' shot of oil to flowthrough the passageways V 46 or 48 and to enter the duct52; Connected atthe point 54 to the duct 52 is a pipe 56, which leads'to an inlet 58 ofan oil filter 60 secured'to the crankcase 12.

In Figures 1 and 2 the invention isshown in its preferred form and isapplied at'the' crankcase breather and oiljsupply opening- In thesefigures the filter head 76 has a special construction as shown so thatit may be secured :to the specially 'constructed fiat portion80 formedon'the crankcase. With this construction, I eliminate the filteroutletpipe 64 shownin Figure 4 and allow the filtered oiltopass directlyfrom the filter through the outlet passage? 8 into the opening 82in thecrankcase and onto the oil pan-14. V The oil filter opening is shown at84, andth e crankcase at this-point has a special construction,

ated into Patent #l,788-,884

as shown'in Figure'2. Suitable piping 56; shaped in any suitable way toavoidobstructing thebreather openin g 84,ileads' -f-rom the duct 52 tothe entrance 58 ofthe oil filter.

.The oil filter head 7 6 is shown as attached to thecrankca'se by meansof a bolt 88 passing therethrough and threaded into, the crankcase, as:shown at {90. The filter head 7 and its arrangementrwith'the crankcaseiscovered in my application'Serial No. 265,259,

filed March 28, 1928, and which has 'eventu- In Figure 4, I have shownafrnodification in the adaptation ofthe filterto the oil meter-. I ingsystem, The construction;atv the .cranli Iandgeam shaft is identicallythe sa-me'as shown and described in Figures 1, 3. The outlet 62of thefilterhas. applied thereto a pipe 64 which'leads toan inlet' 66 1ocatedat; the bottom of :the crankcase betweenr two stiffening flanges 68 andO which are pref erably provided with strengtheningribs 71'.

along their length. The'crankcase at this point has preferably a specialconstruction as shown at 7 2 to forma passageway by which the oil may bereturned to the 'oil pan 14. If

desired, this special construction 72 may be omitted and the oilallowedto flow, directly through the side of the crankcase into the Additionalreinforcing flanges 86 oil .pan. are provlded inside the crankcase aparallel to theqfianges 68 and 70. H

of the bushing 42 and passage 38 to the groove 36 in the cam shaft andlubricate the bearing 34. 5 The excess oil will flow from the groove 36through the diagonal passage 34 or 48 conform to the duet in the rib Ashot oflubricant will accordingly beideliv eredto the duct four timesfor each rotation of the camshaft, and'these shots of oil will bedelivered through thepipe 56 to the filter and the oil after'passingthrough the filter will be :returned to the oilxpan 14 through theopenings 8 and'82 or the pipe 64 and passage 74. V V V v The operation.fthe species shown in Figure 4 is in allrespects similar to that shownin Figures 1 and2.

ment for. my new system i of lubrication as appliedtobut one of thebearings of the cam shaft, itwill be readily understoodzthat a a similarmeterin arrangement may be applied to two or more dfthebearings. Y a

V. I ,claim'rf 100. WVhile I have shownthe metering-arrange- 1 Inan-oilingjsystem as applied to inter nal combustion. engines, anoilfilter, means 5 I for supplying oil under pressure to the'bearingparts .of the engine, a movable part of saidengine constructed tofserve'and operate as anoil dispensing means, and meansfo'r' passing said"dispensed oil to the filter.

a 2. In an oiling system as applied to internal combustion engines, anoil filter,means for supplying oilunder pressure to the bearing parts ofthe engine, a camshaft, means as'so 'ciated. w1th I said -camsh'aftlconstructed r to serve-andop'erate aszan oil dispensing means,

theoi'lingsystem through the filter.

3. In an oiling system as applied-to internal serving as an oildispensing means, and means 7 for return ng said dispensed oil tothe'oili'ng system through the oil filter; 4." In; an .oili

ng system as app'lie(ltdinter w and means for returning said dispensedoil to 1 5. In an oiling system as applied to internal combustionengines, an oil filter, means for supplying oil to the bearing parts ofthe engine, a camshaft, oil dispensing means in the camshaft at acamshaft bearing, and means for returning the oil to the oiling sys temthrough the oil filter.

6. In a lubricating system for internal combustion engines, a cam shaftoperating in bearings, a pump for supplying oil under pressure to thebearing parts ofthe engine, a plurality of passages at a cam shaftbearing for dispensing the oil delivered to said bearing, a duct leadingfrom the bearing for conducting away the dispensed oil, and an oilfilter for receiving the oil from the duct.

7. In an oiling system as applied to inter nal combustion engines, anoilfilter, means for supplying oil under pressure to the bearing parts ofthe engine, a camshaft operated from said engine and constructed toserve as an oil dispensing means, andmeans for passing said dispensedoil to the filter.

I 8. In an oiling system as applied to internal combustion engines, anoil filter, means for supplying oil under pressure to the bearing partsof the engine, a movable member operated from said engine andconstructed to serve as an oil d1spens1ng means, said d1spensing meansincluding a passage in the said dispensed oil to the filter.

10. In an oiling system as applied to internal combustion engines, anoil filter, means for supplying oil to'the bearing parts of the engine,a camshaft, means associated with serving as an oil dispensing means,and means for returning said dispensed oil to the oiling system throughthe oil filter.

12. In an oiling system as applied to internal combustion engines, anoil filter, means.

'in said-g dispensed oil to the forsupplying oil to the bearing parts.ofrthe engineya camshaft, a passage in the camshaft serving as anoildispensing means, and means including a du'ct 1n the crankcase forreturn- 13." In an oiling syst appliedto internal combustion engines, an.oil filter, means for supplyingoil to the bearingjparts' of the engine,a camshaft, a pluralityof passages in the camshaft positioned at abear-ingiand serving as an oil' dispensing means, and means forreturning said dispensed oil to the oiling system through the oilfilter.

14. In an oiling system as applied to internal combustion engines, anoil filter, means for supplying oil to the bearing parts of the engine,a camshaft,a plurality of passages in the camshaft serving as anoildispensing means, and a duct in the crankcase for re:

oiling systemthe camshaftat a camshaft bearing, said disa V pensingmeans comprising a groove at the camshaft bearing, one or more passagesin the camshaft, anda passage-connecting thegroove and first namedpassage or passages, and means for returning the oil to the oilingsystem through the'oil filter.' y

16. In an oiling system as applied to' internal combustion engines, anoil filter, means for supplying oil to the bearing parts of the engine,a camshaft, oil dispensing means in the camshaft at a camshaft bearing,and a duct in the crankcase for returning the oil to the oilin systemthrough the oil filter, said dispensing means registering intermittentlywith said duct.

17. In an oiling system as applied to internal combustion engines, anoil filter, means for supplying oil to the bearing partsof the engine, acamshaft, oil dispensing means in the camshaft at a camshaft bearingcomprising two passages at right angles to each other. through thecamshaft, and means for, returning the oil to the oiling system throughthe oil filter, said passages registeringintermit- 'tently with saidlast named means tosupply a shot of oil for the filter.

18. In an oiling'system as applied to internal combustion engines, anoil filter, means for supplying oil to the bearing parts of the engine,a camshaft, oil dispensing means in the camshaft at a camshaft bearingincluding a plurality of passages in the camshaft," and means includinga duct in the crankcase for returnin the oil to the oiling systemthrough the oil filter, said passages registering inter inittently withsaid duct to' supply a shot of oilforthefilter. 19. In a lubricatingsystem for internal edmbustion, engines, acamshaft operating in ebearings, a'jmmpfor supplying oil under pressure to the, bearing partsof the engine, meansat a camshaft bearing 'COIIIPriSIIIg a "groevein thecamshaft, a plurality of diaf metrally extending passages in the shaftand t Y a holein thebearing' for dispensing the oil delivered to' saidbearing, a duct leading from the bearing for conducting 3-way, thedispensed' oil, and an oil filterefor receiving the oil from the duct. v

ln'testimony whereof I aflix my signature.

" 1 CHARLES L. MQGUEN.

